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Home > Needle Valves > Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
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Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves

Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves

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Product Description

📋 Basic Information
Model NO.
BS1
Handle Color
Black, Blue, Red, Green
Body Material
SS 316, SS316L
Certificates
PED / ISO / ABS
Sample Time
3-5 Days in Stock
Package
Plastic Bag and Export Carton
Specification
1/8 to 3/4 inch, 6mm to 12mm
HS Code
8481804090
🛠️ Product Description

SS 316 VCR Instrument Gasket Bellows Sealed Needle Valves - BS1 Series

BS1 series bellows-sealed valves are engineered for system versatility. With a working pressure up to 1000 psig (68.9 bar) and temperature ratings from -20ºF to 900ºF (-28ºC to 482ºC), these valves provide reliable, leak-tight performance. The packless design with gasketed or welded seals is ideal for critical applications where atmospheric isolation is paramount.

Core Features:

  • Maximum working pressure up to 1000 psig (68.9 bar)
  • Temperature range: -20ºF to 900ºF (-28ºC to 482ºC)
  • Flow coefficients (Cv) from 0.12 to 1.2
  • Precision-formed metal bellows for reliable sealing
  • Non-rotating stem tip: spherical, conical, and regulating
  • Helium leak tested (Max rate: 4 × 10⁻⁹ std cm³/s)
Bellows Sealed Valve Features
Valve Advantages

Key Advantages:

  • Hardened stainless steel actuator for superior strength
  • Positive stem retraction design
  • Actuator threads protected from system contaminants
  • Backstop design enhances bellows service life
  • 100% factory tested performance
📊 Pressure-Temperature Ratings
Body Material 316 S.S. Brass Alloy 400
Temperature ºF(ºC) PCTFE Tip 316 SS Tip (Gasket) 316 SS Tip (Welded) PCTFE Tip 316 SS Tip PCTFE Tip 316 SS Tip
-20(-23) to 100(37) 1000(68.9) 1000(68.9) 1000(68.9) 1000(68.9) 1000(68.9) 700(48.2) 700(48.2)
400(204) - 500(34.4) 500(34.4) - 150(10.3) - 450(31.0)
900(482) - - 200(13.7) - - - -
📐 Technical Specifications & Dimensions
Standard Construction Diagram
Product Dimensions Diagram
💨 Pneumatic Actuators

Features:

  • Low actuation pressure requirements
  • Aluminum and stainless steel construction
  • Reliable piston design for high cycle life

Modes:

  • Normally Open (NO)
  • Double Acting (PD)
  • Normally Closed (NC)
Actuator Modes Actuator Dimensions
📜 Capacity & Quality

Our product range adheres to ISO, ANSI, ASME, ASTM, API, MSS, EN, and GB standards. We specialize in:

  • Fittings: Twin Ferrule, Threaded, Welded, and Vacuum Fittings.
  • Valves: Ball, Needle, Relief, and Diaphragm Valves.
  • UHP Products: EP Tubes, VCR Fittings, and Miniature Butt-Weld.
Certificates Display Production Range Factory Qualification
Frequently Asked Questions
Q1: What is the maximum working pressure for the BS1 series? A: The BS1 series bellows-sealed valves can handle a maximum working pressure of up to 1000 psig (68.9 bar).
Q2: What temperature range can these valves withstand? A: These valves are rated for service from -20ºF to 900ºF (-28ºC to 482ºC), depending on the tip material and seal type.
Q3: Are these valves tested for leaks? A: Yes, every valve undergoes helium leak testing for 10 seconds to ensure a maximum leak rate of no more than 4 × 10⁻⁹ std cm³/s.
Q4: What materials are available for the valve body? A: Standard materials include 316 Stainless Steel, Brass, and Alloy 400.
Q5: Can I get pneumatic actuators for these valves? A: Yes, we offer Normally Open (NO), Normally Closed (NC), and Double Acting (PD) pneumatic actuators.
Q6: What types of stem tips are available? A: We provide non-rotating stem tips in spherical, conical, and regulating designs.

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